The test is simple. Keep typing in the title to a video game or series until Google Instant turns up a result. See how many letters it takes. Presumably, the bigger the series, the faster the result, though the first few letters of a game's name help; Zelda doesn't have much competition, for example.

The most impressive? Metal Gear Solid, Team Fortress 2 and Tetris, the first two because they show up having just typed words as common as "metal" and "team", the latter because all it needed was a "te".

I think the difference here is that the links actually appear outside the drop-down bar (if you look at the screenshots the search results are already there. What used to happen was just suggestions (in the drop-down bar) that you could pick, and then it would search...

Triple AAA games nailing the brief. Indie games surprising people out of nowhere, and expansions and patches that completely turn a game around. It's been a good year for games - now it's time for you to vote for your favourite.